Toronto Pearson Terminal Redevelopment

Expanding Canada's largest airport for today and the next century

Greater Toronto Airports Authority (sub to Airport Architects Canada) | Canada | 1998-2012

350,000 m2
terminal with 80 aircraft stands

35 million
passenger capacity, annually

Readily expandable
to accommodate growth well into the next century

airport undertaking in North America at the time


  • The terminal was part of an overall $4.4-billion-capital-cost project for 10-plus years.
  • Project included new passenger and cargo terminals, expanded airfield infrastructure, and better, more simplified public access.
  • Prime consultant for decommissioning and demolition of 30 existing buildings, staging complex to enable works, designing utilities, frontage roads and bridges, adjoining taxiways, and more to support the new Terminal 1.
  • Carry out construction while this near-capacity airport terminal remained in operation.


  • To provide one of the first airfield pavements for the A380 aircraft in North America , we created the pavement design before the aircraft's final technical data was available.
  • Sensitive airport and border security issues were crucial in the demolition design.
  • Award-winning elevated terminal roadways were built, the first to use high-performance concrete for post-tensioned frontage road structures.
  • Design considerations included maneuverability of a variety of aircraft types, with gates to service two narrow-body aircraft in the morning, and one large wide-body aircraft at the afternoon peak.


  • Aircraft aprons consisted of 67ha (166 acres) of new pavement
  • First North American pavement design for the A380 aircraft
  • Canada’s first in-ground airport snow melting pits
  • Innovative construction works during winter using geogrid with geotextile fabric
  • Met challenging environmental sustainability targets to achieve ISO-14001 certification and be one of North America’s first to register under it.
  • 2008 Award of Merit, Consulting Engineers of Ontario

“HMM (Hatch) has a very proactive approach and monitors the schedule activities very closely. HMM identifies schedule concerns before they arise and HMM provides mitigation solutions.[The] Pearson Development Program has been very satisfied with HMM... We have experienced many successful projects together.” [Hatch] has a very proactive approach and monitors the schedule activities very closely. [The] Pearson Development Program has been very satisfied.... We have experienced many successful projects together.”

John Iannone | Program General Manager, GTAA, Toronto Pearson International Airport

Project Numbers

  • Toronto Pearson International Airport is Canada’s busiest airport
  • Terminal 1 is a complex, three-sector terminal that coordinates international, domestic Canadian, and US transborder flights
  • Approximately 3.7 million ft2 of terminal floor was distributed over three primary levels and an integrated ramp control tower
  • C$2.6 billion capital cost
  • 98% of the old Terminal 1 building was successfully recycled after its demolition

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